Power distribution mimo power line communication multi-terminal transmission method
A technology of power line communication and transmission method, applied in the field of multi-terminal transmission of power distribution MIMO power line communication, can solve the problem of high data retransmission rate of distribution network terminals, and achieve the effect of improving transmission performance and reducing retransmission rate
Active Publication Date: 2022-07-29
国网江西省电力有限公司经济技术研究院 +1
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the above situation, it is necessary to provide a distribution MIMO power line communication multi-terminal transmission method for the problem of high retransmission rate of distribution network terminal data in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0032] These and other aspects of embodiments of the present invention will become apparent with reference to the following description and accompanying drawings. In these descriptions and drawings, some specific implementations of the embodiments of the invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the invention, but it should be understood that the scope of the embodiments of the invention is not limited by this limit....
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A multi-terminal transmission method for power distribution MIMO power line communication, comprising: obtaining OFDM channel parameters of a MIMO power line communication system, and calculating the total data transmission capacity of the MIMO power line communication system according to the OFDM channel parameters; obtaining an upper limit of service data volume of power distribution terminals value, and according to the upper limit value and the total data transmission capacity, calculate the number of distribution terminals that the MIMO power line communication system can support within one OFDM symbol period; The carrier is divided to obtain M sub-carrier groups, where M is the number of terminals in the distribution network; the data of the first M terminals is selected to load and transmit the data of the M sub-carrier groups within one OFDM symbol period. The invention performs dynamic channel allocation for service terminal data based on the time-varying dynamics of subcarrier transmission performance, reduces the retransmission rate of the distribution network terminal data, and improves the transmission performance of the system.
Description
technical field [0001] The invention relates to the field of power line communication, in particular to a multi-terminal transmission method for power distribution MIMO power line communication. Background technique [0002] The distribution communication network is an important part of the power distribution automation business system. The distribution automation terminal business includes remote signaling, telemetry, and remote adjustment services. According to the length of business data, it can be divided into long-bit services and short-bit services. In the communication technology for building a distribution communication network, PLC (Power Line Communication) technology has inherent technical advantages. PLC technology uses the power line of the distribution network as a communication medium to realize signal transmission, which has the advantages of cost saving, convenient installation and flexible deployment. advantage. [0003] MIMO-PLC communication is a researc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B3/54
CPCH04L5/0007H04L5/006H04L5/0094H04B3/54
Inventor 李映雪章小枫彭辉云钟士元王伟周成陆俊张立川
Owner 国网江西省电力有限公司经济技术研究院